XML 24 R28.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Summary of Significant Accounting Policies (Details) | 3 Months Ended
--- | ---
Mar. 23, 2012 weeks
Weeks in First Three Reporting Quarters (in weeks) | 12
Buildings, Land Improvements, and Building Improvements [Member] |
Property, Plant and Equipment, Useful Life, Minimum (in years) | 15
Property, Plant and Equipment, Useful Life, Maximum (in years) | 40
Furniture, Fixtures and Equipment [Member] |
Property, Plant and Equipment, Useful Life, Minimum (in years) | 1
Property, Plant and Equipment, Useful Life, Maximum (in years) | 10
Minimum [Member] |
Weeks in Fourth Reporting Quarter (in weeks) | 16
Maximum [Member] |
Weeks in Fourth Reporting Quarter (in weeks) | 17

X
- Definition Weeks in First Three Reporting Quarters + References No definition available. + Details
Name: | drh_WeeksInFirstThreeReportingQuarters
Namespace Prefix: | drh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weeks in Fourth Reporting Quarter + References No definition available. + Details
Name: | drh_WeeksInFourthReportingQuarter
Namespace Prefix: | drh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLifeMaximum
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum useful life of long lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLifeMinimum
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration